Question

what is the difference between gram negative and gram positive bacteria?​

Answer 1

Answer:

Gram positive bacteria have cell walls composed of thick layers of peptidoglycan.

Explanation:

Gram negative bacteria have cell walls with a thin layer of peptidoglycan

Answer 2

Answer:

Gram positive bacterias :

• They remain coloured blue and purple with gram stain even after washing with alcohol.
• The cell wall is single layered.
• They lack outer membrane.
• The thickness of the wall is 22-80 nm.
• The wall has less lipid content.
• Few pathogenic bacteria is belong to gram-positive group.

Gram negative bacterias :

• The bacterias do not retain the stain when washed with absolute alcohol.
• The wall is two layered.
• The outer membrane is present.
• The thickness of the wall is 8 to 11 nm.
• The lipid content of the wall is 20 to 30%.
• Most of the pathogenic bacteria is belong to gram-negative group